Barrier connection system and connector for use therein

ABSTRACT

A barrier connection system comprising at least one pair of connectors, each connector including: 
     a mounting section for attachment to a barrier, the mounting section having inner and outer faces;
 
first and second connector elements at respective ends of the mounting section;
 
the first connector element including an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess therebetween;
 
the second connector element including an outwardly extending flange;
 
the inwardly and outwardly extending flanges being dimensioned and orientated such that in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.

PRIORITY APPLICATIONS

This application claims the benefit under 35 U.S.C. 119 to Australian Application No. 2014902682, filed on 11 Jul. 2014; which application is incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to a connection system for barriers. It particularly relates to a connection system for roadway barriers. The present disclosure also relates to a connector for use in the connection system of the disclosure. The present disclosure also relates to a method of connecting barriers using the connection system of the disclosure.

The present disclosure relates particularly, although by no means exclusively, to a connection system that utilizes a pair of connectors wherein each connector has the same configuration.

BACKGROUND

Known roadway barriers include:

-   -   (a) barriers made from concrete that rely on the weight of the         concrete to function as barriers and typically weigh 1,000 kg         per meter of the length of the barrier;     -   (b) barriers that comprise shells made from plastics materials         that are adapted to be filled with water and rely on the weight         of the water to function as barriers and typically weigh at         least 300 kg per meter of the length of the barrier; and     -   (c) barriers made from steel which also rely on the weight of         the barriers to function as barriers and weigh at least 200 kg         per meter of the length of the barrier and, in many instances         are fixed to the ground.

Roadway barriers are typically constructed from a number of barrier units that are transported and connected together on site. The barriers often include complementary members at the ends of the barrier units for allowing a plurality of barrier units to be connected together in end-to-end relationship in a line of the barrier units.

There is a number of existing connection systems for roadway barriers.

Many existing connection systems utilize a combination of different connection elements that together interact in order to connect the respective barrier units together. For example, some systems employ a male and a female component, with the male component provided on one end of a barrier unit and the female component on the other end of the barrier unit. Connection of such barriers requires correct orientation of adjacent barriers to ensure engagement of the male component of one barrier with the female component of an adjacent barrier, and vice versa.

Other systems may require use of extrinsic components, such as pins or rods, to connect adjacent barrier units, which results in complex and multicomponent systems and may add to manufacturing expense.

The barrier may include complementary members at the ends of the barriers for allowing a plurality of barriers to be connected together in end-to-end relationship in a line of the barriers.

There is a need for a barrier connection system that has a simple design, does not require multiple different components and is independent of orientation of barrier units.

The above description of prior art barrier connection systems is not to be taken as an admission of the common general knowledge in Australia or elsewhere.

SUMMARY

The present disclosure provides a barrier connection system comprising at least one pair of connectors, each connector including:

a mounting section for attachment to a barrier, the mounting section having inner and outer faces; first and second connector elements at respective ends of the mounting section; the first connector element including an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess therebetween; the second connector element including an outwardly extending flange; the inwardly and outwardly extending flanges being dimensioned and orientated such that in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.

The present disclosure also provides a connector for use in the barrier connection system of the disclosure.

The present disclosure also provides a method of constructing a barrier using the barrier connection system of the disclosure.

In an embodiment, the outwardly extending flange of the second connector element is generally parallel to the inwardly extending flange of the first connector element. In an embodiment, the outwardly extending flange comprises a male coupling member and the recess defined by the inwardly extending flange and the inner face of the mounting section comprises a female coupling member. The dimensions of each female coupling member are slightly larger than those of each male coupling member in order to allow for receipt of the latter into the former.

In an embodiment, the inwardly and outwardly extending flanges of respective connectors engage each other in use. The engagement may comprise two spaced apart areas of contact between the connectors. The areas of contact may be laterally spaced apart. This arrangement enhances the stability of the connector system as compared to a connector system that comprises only a single contact point. For example one prior art connector system comprises two “J” shaped hooks that extend from respective ends of adjacent barrier units. Such single contact point connector systems often allow undesirable pivoting movement between the barrier units which can undermine the rigidity and strength of the constructed barrier and may result in lengthwise twisting of the barrier in response to vehicle impact.

The inwardly and outwardly extending flanges of respective connectors may be of similar dimensions. In an embodiment, the inwardly and outwardly extending flanges of respective connectors are of substantially identical dimensions.

In an embodiment, the outwardly extending flange is spaced from the plane of the mounting section by a greater amount than the inwardly extending flange. This thereby allows the outwardly extending flange of one connector to be received in the recess of another connector.

A respective web may extend between each of the outwardly and inwardly extending flanges and the mounting section. The web joining the outwardly extending flange and the mounting section may be longer than the web between the inwardly extending flange and the mounting section. This arrangement enables the spacing of the outwardly extending flange the required further distance from the mounting section.

The mounting section may be attached to an end of a barrier unit.

The mounting section is attachable to a barrier unit by any suitable means. It may be attached by fasteners such as screws or bolts. It could also be attached by welding (eg where the barrier unit is made from metal).

Alternatively, the mounting section may be set into a concrete barrier unit during casting of the concrete. Other components may be provided on the connector prior to connection to the barrier unit. For example, a reinforcing bar or brackets may be attached to the connector prior to casting in concrete.

In an embodiment, each connector is of unitary construction. This greatly reduces complexity and cost of manufacture and simplifies operation of the connector.

The connector may be made from metal. A suitable metal is steel. The connector may be made from metal sheet or plate that is cut and bent to form the connector. Alternatively, the metal may be cast or forged. In one embodiment, the connector is formed from steel plate having a thickness of 12 mm. The steel may be Grade 350 steel.

The connector may instead be made from a suitable alternative material. For example, the connector may comprise a plastics material, such as polycarbonate, and be manufactured by alternative means such as molding or casting.

The connector system may comprise one or more pairs of connectors. Each connector may comprise an elongate body having a longitudinal axis that extends substantially vertically of the of the barrier unit in use.

The connector system may comprise a single pair of elongate connectors. Alternatively, the connector system may comprise two or more pairs of connectors that, in use, are vertically spaced along the ends of adjacent barrier units.

The present disclosure also provides a barrier assembly including a plurality of the above-described barrier units connected together in end-to-end relationship by the connection system of the disclosure.

Advantages of the present disclosure include:

-   -   a simple, self-contained, one component connection system that         is independent of orientation of the barrier units.     -   It does not require the use of extrinsic components such as pins         or bolts in order to join respective connectors. This greatly         simplifies barrier construction and reduces manufacturing cost.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is described further by way of example with reference to the accompanying drawings, of which:

FIG. 1 is a perspective view of an embodiment of a connector for use in the connection system.

FIG. 2 is a plan view of the connector of FIG. 1.

FIG. 3 is a plan view of a connection system.

FIG. 4 is a perspective view of a barrier constructed using the connector system.

FIG. 5 is a perspective view of an end of a barrier unit of FIG. 4.

FIG. 6 is a plan view of the connected ends of adjacent barrier units.

DETAILED DESCRIPTION

With reference to FIGS. 1 to 3, a connection system 10 is shown that comprises a pair of connectors 12. Each connector 12 includes a mounting section 14 for attachment to a barrier end. The mounting section 14 comprises a mounting web 15 that has an inner face 16 and an outer face 18.

First and second connector elements, 20, 22, are provided at respective ends of the mounting section 14. The first connector element 20 includes an inwardly extending flange 24 and a first web portion 25 extending between the flange 24 and a first end of the mounting section 14. The flange 24 is spaced from the inner face 16 of the mounting section 14 to at least partially define a recess 26 therebetween.

The second connector element 22 includes an outwardly extending flange 28 and a second web portion 29 extending between the flange 28 and the second end of the mounting section 14.

In the embodiment illustrated in FIG. 3, both connectors are substantially identical.

The inwardly and outwardly extending flanges are dimensioned and orientated such that in use, the outwardly extending flange 28 of one connector 12 is receivable within the recess 26′ of the other connector 12′ (refer to FIG. 3). The dimensions of the recess 26 complement the shape and size of the outwardly extending flange 28. Accordingly, when one connector 12″ is rotated 180° with respect to the other connector 12, (for example, when the connectors are attached to ends of adjacent barrier units), the outwardly extending flange of each connector is receivable in a respective recess of the other connector.

FIG. 4 shows a roadside barrier 30 comprising a series of interconnected steel barrier units 32 (only two barrier units are illustrated). Each barrier unit 32 includes two end faces 34. Each end face 34 includes a substantially vertically orientated channel 36. A connector 12 is attached to the end face 34 within the channel 36. By locating the connector 12 within the channel 36 it is protected from damage during handling and transport.

The barrier units are connected together by vertically aligning the respective connectors of adjacent barrier units, then carefully lowering one barrier unit into engagement with the other, such that the two connectors engage each other as previously described. The ends of the connectors are preferably chamfered in order to assist the location of the connectors during this operation. FIG. 6 is a plan view of the connector system 10 at the junction between two connected barrier units 32.

Many modifications may be made to the preferred embodiment of the disclosure described above without departing from the spirit and scope of the disclosure. 

1. A barrier connection system comprising at least one pair of connectors, each connector including: a mounting section for attachment to a barrier, the mounting section having inner and outer faces; first and second connector elements at respective ends of the mounting section; the first connector element including an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess therebetween; the second connector element including an outwardly extending flange; the inwardly and outwardly extending flanges being dimensioned and orientated such that in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.
 2. The barrier connection system of claim 1, wherein each connector in the pair of connectors has the same configuration.
 3. The connector for use in the connection system of claim 1, the connector including: a mounting section for attachment to a barrier, the mounting section having inner and outer faces; first and second connector elements at respective ends of the mounting section; the first connector element including an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess therebetween; the second connector element including an outwardly extending flange; the inwardly and outwardly extending flanges being dimensioned and orientated such that in use, the outwardly extending flange of the connector is receivable within the recess of another connector.
 4. The connector of claim 3, wherein the barrier is a roadway barrier.
 5. The connector of claim 3, wherein the outwardly extending flange of the second connector element is generally parallel to the inwardly extending flange of the first connector element.
 6. The connector of claim 3, wherein the outwardly extending flange comprises a male coupling member and the recess defined by the inwardly extending flange and the inner face of the mounting section comprises a female coupling member.
 7. The connector of claim 6, wherein the inwardly and outwardly extending flanges of respective connectors engage each other in use at two spaced apart areas of contact.
 8. The connector of claim 3, wherein the outwardly extending flange is spaced from the plane of the mounting section by a greater amount than the inwardly extending flange.
 9. The connector of claim 8, wherein respective webs extend between each of the outwardly and inwardly extending flanges and the mounting section and the web joining the outwardly extending flange and the mounting section is longer than the web between the inwardly extending flange and the mounting section.
 10. The connector of claim 3, having a unitary construction.
 11. A method of assembling a barrier, by connecting together a series of barrier units, including the steps of: (a) providing a plurality of barrier units, each barrier unit having a connector of claim 3 attached to at least one end thereof, the connectors of adjacent barrier units being in a similar orientation with respect to their respective barrier units, and (b) engaging the or each connector of each barrier unit with the connector of an adjacent barrier unit, by inserting the outwardly extending flange of said each connector into the recess of the connector of said adjacent barrier unit.
 12. The method of claim 11, wherein the connectors of adjacent barrier units are orientated at substantially 180° with respect to each other in the assembled barrier.
 13. The method of claim 11, wherein step (b) includes vertically aligning the respective connectors of an adjacent pair of barrier units, then lowering one barrier unit into engagement with the other barrier unit.
 14. The barrier comprising two or more barrier units connected together using the connector system of claim
 1. 